Transmission device, transmission method, and storage medium

Details Transmission device, transmission method, and storage medium Transmission device, transmission method, and storage medium

2011-01-04

2011-01-04

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

07864872

ABSTRACT:
Disclosed is a method that preferably performs transmission processing to a time sequence signal of a known pattern as the pre-amble and an OFDM transmitted signal.In data communications, the general practice defines the pre-amble and detects the peaks of the mutual correlation to thereby detect synchronization. The pre-amble here is defined by the binary value in most cases for simplification of a correlation detecting device. In this case, the spectrum becomes irregular with sharp peaks and dips, which deteriorates the correlation characteristic. The method of the invention forcibly adjusts the spectrum amplitude of the pre-amble pattern on the transmitting side while retaining the phase information thereof, and thereby the method improves the spectrum and correlation characteristics while securing simplification of a correlation detecting device on the receiving side.

REFERENCES:
patent: 5687243 (1997-11-01), McLaughlin et al.
patent: 6044341 (2000-03-01), Takahashi
patent: 6175551 (2001-01-01), Awater et al.
patent: 6263307 (2001-07-01), Arslan et al.
patent: 6577739 (2003-06-01), Hurtig et al.
patent: 6657950 (2003-12-01), Jones et al.
patent: 6987801 (2006-01-01), Noma et al.
patent: 7170342 (2007-01-01), Suzuki et al.
patent: 7327793 (2008-02-01), Jin
patent: 2002/0097668 (2002-07-01), Izumi
patent: 2003/0012297 (2003-01-01), Imamura
patent: 2004/0136464 (2004-07-01), Suh et al.
patent: 2005/0013381 (2005-01-01), Suh et al.
patent: 2005/0027514 (2005-02-01), Zhang et al.
patent: 2005/0154546 (2005-07-01), Humphrey et al.
patent: 2005/0180386 (2005-08-01), Hansen et al.
patent: 2005/0232342 (2005-10-01), Batra et al.
patent: 2006/0050624 (2006-03-01), Akita
patent: 2006/0229869 (2006-10-01), Nemer
patent: 2006/0262880 (2006-11-01), Mizuta et al.
patent: 9-93296 (1997-04-01), None
patent: 11-220452 (1999-08-01), None
patent: 2001-339363 (2001-12-01), None
patent: 2004-236065 (2004-08-01), None
Multi-band OFDM Physical Layer Proposal for IEEE 802.15 Task Group 3a, IEEE P802.15-03/268r0, 2003.07, <URL: http://grouper.ieee.org/groups/802/15/pub/2003/Jul03/03268r0P802-15—TG3a-Multi-band-CFP-Document.doc>, Wireless Personal Area Networks, pp. 1 to 71, Jul. 2003.
U.S. Appl. No. 11/066,276, filed Feb. 28, 2005, Suzuki.
“Multi-band OFDM Physical Layer Proposal for IEEE 802.15 Task Group 3a”, IEEE P802.15-03/268r2, 2003.07, <URL: http://grouper.ieee.org/groups/802/15/pub/2003/Jul03/03268r0P802-15—TG3a-Multi-band-CFP-Document.pdf>, Wireless Personal Area Networks, pp. 1 to 69, Nov. 2003. (revised version).
Anuj Batra, et al., “TI Physical Layer Proposal for IEEE 802.15 Task Group 3a”, IEEE P802.15-03/142r1, May 2003, pp. 1-3, 21-26 and 57-59.

Affiliated with

Also associated with

Rating

Transmission device, transmission method, and storage medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmission device, transmission method, and storage medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission device, transmission method, and storage medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2699633